## Technical Overview of UP3B-6R8-R The **UP3B-6R8-R** is a high-performance, shielded power inductor designed by Eaton (formerly Cooper Bussmann). It belongs to the **UP3B series**, which is known for its high power density and reliability in surface-mount (SMD) applications. --- ### 1. Key Technical Specifications The following table summarizes the electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 6.8 µH | | **Tolerance** | ±20% | | **Current Rating (Irms)** | 5.8 Amps | | **Saturation Current (Isat)** | 8.2 Amps | | **DC Resistance (DCR)** | 14.9 mΩ (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Package / Case** | 18.3mm x 14.0mm x 6.8mm | | **Shielding** | Shielded (Drum Core Construction) | --- ### 2. Functional Components & Materials * **Core Material:** Typically utilizes a ferrite drum core. The ferrite material provides high permeability and low core losses at high frequencies. * **Winding:** Copper wire wound around the core. The "R" suffix indicates low resistance, optimizing efficiency by reducing heat dissipation (I²R losses). * **Shielding:** The component features a magnetic shield. This is crucial for electromagnetic interference (EMI) sensitive designs, as it prevents the magnetic field from interfering with neighboring components. * **Termination:** Lead-free, RoHS-compliant solder pads for surface-mount technology (SMT) reflow processes. --- ### 3. Application Use Cases The UP3B-6R8-R is commonly integrated into the following systems: 1. **DC-DC Converters:** Used as an energy storage element in buck (step-down) or boost (step-up) regulators. 2. **Power Supplies:** Found in industrial computers, telecommunications equipment, and servers. 3. **Battery Powered Systems:** Due to its low DCR, it is efficient for portable devices where battery life is critical. 4. **Voltage Regulator Modules (VRMs):** Used to provide stable power to CPUs and GPUs. --- ### 4. Part Number Breakdown The part number follows a specific nomenclature: * **UP3B:** Series Identifier (Unipac 3B size/type). * **6R8:** Inductance Value (6.8 µH). The "R" acts as a decimal point. * **-R:** RoHS compliant / Green material. ---